Home / 825,984,026.60-1,238,976,039.90-578,744,551.40

Finding the Fourth Proportional to 825,984,026.60, 1,238,976,039.90 and 578,744,551.40

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Solution

The fourth proportional to 825,984,026.60, 1,238,976,039.90 and 578,744,551.40 is: 868,116,827.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,984,026.60 : 1,238,976,039.90 = 578,744,551.40 : x
  2. Step 2: Convert to fraction form
    825,984,026.60/1,238,976,039.90 = 578,744,551.40/x
  3. Step 3: Cross multiply
    825,984,026.60x = 1,238,976,039.90 × 578,744,551.40
  4. Step 4: Simplify right side
    825,984,026.60x = 717,050,632,407,273,984
  5. Step 5: Solve for x
    x = 717,050,632,407,273,984/825,984,026.60
  6. Step 6: Final answer
    x = 868,116,827.10

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.